So we got a Thanksgiving present of a new update for our T2i cameras. This update fixes a phenomenon in which tone jumps become noticeable in some images, depending on the shooting scene, when shooting with the Auto Lighting Optimizer settings (Low / Standard / Strong).
Be sure to follow the directions on determining if you need to install the update and the proper method of doing so on Canon’s site. It is simple and only takes a few minutes to perform the update. You will need to go to the bottom of the page to agree to Canon’s terms before you can do the download. There are separate downloads for Mac and Windows and the link that I provided above is for the Windows version. To select another operating system version of the firmware go to this link and click on the Choose Operating System in the center of the screen. You will then be taken to the proper screen for your download.
I find that in most cases that you will want these updates when they come out. If you don’t feel adventurous then you may want to wait a couple weeks to see if anyone is having any problems with it before doing the installation on your equipment. But typically these updates from Manufacturers are usually a good thing to install.